254 • SMP Gateway User Manual
Use SMP Log to look in the Control log.
All control operations are recorded in this log.
Use SMP Trace to see the data exchanges.
Note, however, that you have to be connected to the SMP Gateway to view a control
operation in real time.
Make the following checks to determine the cause of the failure:
Using SMP Log, look at the control log and make sure the SCADA is sending the correct
sequence (direct operate, select before operate) of messages.
Using SMP Config, check the general settings of both the master and the slave protocol
instances. Make sure each that for each of them, the Control Enabled checkbox is
selected.
Using SMP Config, make sure the binary and analog physical output points are set up
correctly. For example, for the DNP3 protocol, Control Type requires a value other than
“Not supported”. See the device manufacturer’s documentation for the required setup and
refer to the appropriate Cooper Power Systems protocol documentation.
Refer to the device manufacturer’s documentation to check whether the device allows for
a polling message to be sent between a select and an operate or whether polling has to
wait until after the select and operate have completed. Some manufacturers deselect the
device if a polling message is sent between a select and an operate. If polling has to wait,
use SMP Config to make sure that the Tx During SBO checkbox is selected in the
master protocol’s general parameters.
Using the web browser, make sure the point called _smp___localControl is set either to
0 to enable commands from the SCADA or to 1, to enable commands from Visual
Substation. If the value is not set properly, send either an open command to the point
called _smp___setLocalControl to set the value to 0, or a close command to set the
value to 1.
Using the web browser, check whether the point is set to inhibit operations. If so, remove
the inhibition.
28.6 Firewall-Related Problems
If you have mistakenly enabled the firewall and cannot use VPN connections:
Ask your IT administrator to modify the corporate network to allow VPN connections to the
SMP Gateway, if possible.
If your IT administrator cannot solve the problem, the only solution left is to perform a “Factory
reset” of the SMP Gateway. This operation:
deletes all configuration files;
clears the log history;
deletes the application files.
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